Question

If light travels exactly 1 meter in 1/299,772,458 of a second, how many kilometers does it travel in 3.00 years? for this question, 1 year = 365.25 days.

Answer 1

Light travels approximately 9.46 x 10^12 kilometers in one light-year.

Step-by-step explanation:

Light travels at a speed of 3 x 105 km/s. To calculate how far it goes in a year, we can use the formula:

distance = speed x time

There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. There are also 365.25 days in a year. By multiplying these values together, we can find that light travels approximately 9.46 x 1012 kilometers in one light-year. Therefore, light travels almost 10 trillion kilometers in a year.

Answer 2

Answer: 2.84*10^13 km
To answer this question, you need to convert the year into second as the velocity of the light using meter/second unit, then convert the meter into kilometers. Since light travel 1 meter in 1/299,772,458 second, then the light velocity should be 299,772,458m/s. The calculation would be:

Distance traveled= velocity * time
Distance traveled= 299,772,458m/s * 3 years * 365.25 days/year * 24 hours/day *3600 seconds/ hour= 2.84 * 10^16 meter * 1km/1000m= 2.84*10^13 km